Your MRI Exam

We are dedicated to providing you with the highest level of comfort throughout your MRI experience. Part of that is helping to educate you about how your MRI is performed and what to expect.

What is MRI?

Magnetic Resonance Imaging (MRI) is an advanced imaging technique that uses a strong magnetic field, radio waves and computers to produce detailed images of the body without the use of ionizing radiation (x-rays).

Why have MRI?

Magnetic resonance imaging is a non-invasive study (does not involve surgery) that provides an unparalleled view inside the body. MRI has the ability to produce extraordinarily clear and detailed high definition images from multiple planes.

The level of detail and ability to distinguish differences between similar tissues (for example, diseased and healthy) allows for early detection of an abnormality. Early detection can mean early treatment. And because MRI does not use ionizing radiation (x-rays), it is safe for adults and children.

Types of MRI

Magnetic Resonance Angiography (MRA) is an MRI of the arteries, the blood vessels that carry blood away from the heart. The study is painless, does not involve the insertion of a catheter and has no risk of damaging an artery. An MRA is often performed to observe the movement of blood through the vessels and to detect:

an aneurysm (bulge), clot, or stenosis (narrowing) in the blood vessels to the brain

an aneurysm or dissection (tear) in the aorta, which carries blood to the heart and rest of the body, or

stenosis of blood vessels to the lungs, kidneys, other vital organs or legs

Breast MRI is a safe and painless study of the breast that does not involve radiation (x-rays). It is not a replacement for mammography and ultrasound, nor meant for general breast screening. Breast MRI is used primarily to:

further evaluate abnormalities already found through mammography and ultrasound

pinpoint tumor locations

determine the stage of newly diagnosed breast cancer

identify early breast cancer not found by other means, especially in women with dense breast tissue or those at high risk for the disease

determine whether an existing cancer has spread further in the breast or chest wall

Functional Magnetic Resonance Imaging (fMRI) is an advanced technique that measures changes in blood flow to the brain. An fMRI allows us to identify areas of the brain that are active during specific tasks such as speech, reading, or movement. It is often used to guide surgery, radiation therapy, and other treatments of the brain.

MRI under Anesthesia is a special service for infants, children and adults who require sedation. Sedation is generally required for those who are unable to lie still during their study or who are severely claustrophobic. Pediatric anesthesia is provided by specialty-trained pediatric anesthesiologists.

Lehigh Magnetic Imaging Center is part of Lehigh Valley Health Network, which includes three full-service hospitals in Allentown and Bethlehem, PA, community health centers in eight counties, primary care and speciality physician offices throughout the region, pharmacies, imaging services, home health and hospice, community clinics, lab services and preferred provider services.